Use this dialog box to decide what needs to be done when a new move is entered.
New variation will start a different line of play that will appear parallel to the original moves.
New main line will enter the move as the main line and make the original game a variation.
Overwrite replaces the selected move on the left with the new move and deletes all following moves.
Insert replaces the selected move with the new move and retains as many of the moves as possible. Insert is useful when you have entered a number of moves and discover that one was incorrect. Turbo Dambase will make sure all moves are legal.